US
ROYAL

Royal Canin Veterinary Diet Canine Hydrolyzed Protein Adult Dry Dog Food

  • Veterinary Diet
  • Veterinary Diet
  • Bag
  • Dog
4.3/ 5 on Amazon495Amazon ratings300+bought last month4.0ProductDome score
  • More reviewed than 68%
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYour dog has a vet confirmed food allergy or ongoing skin and GI issues linked to diet

A targeted hydrolyzed protein diet for dogs with confirmed food sensitivities, not a general purpose kibble.

View current price on Amazon →

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ProductDome scorecard

How it ranks among the 50 veterinary diets we track

4.0/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.3

4.3★ across 495 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 291 ratings3.4

495 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.4

300+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 50 veterinary diets we track - how the scorecard works · full veterinary diets data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

This is a veterinary diet built around hydrolyzed soy protein, meaning the protein is broken into pieces too small to typically trigger an allergic response. It comes as a 25.3 lb bag of dry kibble for adult dogs and is gluten free, aimed at dogs with diagnosed food sensitivities or GI issues.

Royal Canin markets this as a therapeutic formula rather than an everyday food, and diets like it are usually recommended by a vet after other proteins have been ruled out. The hydrolyzed approach targets the immune trigger directly instead of just swapping to a novel protein source.

  • Hydrolyzed soy protein formula
  • 25.3 lb bag, dry kibble
  • Gluten free
  • Formulated for medium and large breed adult dogs

Who it's for

Fits dogs already diagnosed with a food allergy, intolerance, or chronic skin and digestive flare ups tied to diet. It is not intended as a general maintenance food for a dog without a known sensitivity.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Hydrolyzed protein aimed at reducing allergic triggers
  • Gluten free formula
  • Supports both skin and digestive health
  • Sized for medium and large breed dogs
What to check first
  • No customer review data available to confirm real world results
  • Large 25.3 lb bag is a commitment if the diet does not suit your dog
  • Best used under veterinary guidance rather than picked independently

Performance notes

The hydrolyzed soy protein is processed so the immune system is less likely to recognize it as an allergen, which is the mechanism behind reduced skin and GI reactions. The formula is also gluten free and sized for medium and large breeds.

Specifications

BrandROYAL
ModelFBA_427625
Dimensions & fit
Item Weight25.3 pounds
Dog Breed SizeAll
Capacity & performance
Age Range DescriptionAdult
Included components
Unit Count25.3 pounds
Other details
Animal Food Diet TypeVeterinary Diet
Container TypeBag
Pet TypeDog
Number Of Items1
ManufacturerRoyal Canin
Manufacturer Part NumberFBA_427625
Model NumberFBA_427625
Specific Uses For ProductSensitive Skin
OccasionBirthday
Target SpeciesDog
Product BenefitsReduces skin and GI reactions, supports healthy skin and digestion
Upc030111427625
Customer Reviews{'ratings_count': '495', 'stars': '4.3'}
Additional FeaturesHydrolyzed Protein for Dogs with Food Sensitivities
Breed RecommendationLarge Breeds, Medium Breeds
Recommended Uses For ProductManage food allergies and intolerances, Support skin health, Aid in digestion
Item FormDry
AsinB004OWRRME
Special Ingredientsgluten-free
Best Sellers Rank#10,802 in Pet Supplies (See Top 100 in Pet Supplies) #19 in Veterinary Diet Dog Food #534 in Dry Dog Food
FlavorHydrolyzed Soy

How it compares

This product against the closest alternatives we track in veterinary diets.

ProductAmazon ratingRatingsProductDome score
Royal Canin Veterinary Diet Canine Hydrolyzed Protein Adult Dry Dog FoodThis product4.3 / 54954.0 / 5
Hill's Prescription Diet c/d Multicare Urinary Care Dry Dog FoodHill's4.7 / 52,2004.4 / 5
Pro Plan Veterinary Diets Purina UR Urinary Ox/St Canine Formula Dog Food Dry KibblePro Plan Veterinary Diets4.6 / 54534.1 / 5
Blue Buffalo Natural Veterinary Diet KS Kidney Support Dry Dog FoodBlue4.2 / 54133.8 / 5
Hill's Prescription Diet i/d Low Fat Digestive Care Dry Dog FoodHill's4.7 / 52,0004.4 / 5
Frequently asked

Questions about the ROYAL FBA_427625

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What is hydrolyzed protein and why does it matter?

Hydrolyzed protein has been broken down into fragments small enough that a dog's immune system typically does not recognize them as an allergen, which is why this formula is used for food sensitivities.

Is this food gluten free?

Yes, the formula lists gluten free among its special ingredients.

What breed sizes is this formula meant for?

It is recommended for medium and large breed dogs, per the product's breed recommendation.